Single nucleotide polymorphism SNP

published:04 Nov 2013

Single nucleotide polymorphism SNP

Single nucleotide polymorphism SNP

published:04 Nov 2013

views:110255

For more information, log on to-
http://shomusbiology.weebly.com/
Download the study materials here-
http://shomusbiology.weebly.com/bio-materials.html
A single-nucleotide polymorphism (SNP, pronounced snip; plural snips) is a DNA sequence variation occurring when a single nucleotide — A, T, C or G — in the genome (or other shared sequence) differs between members of a biological species or paired chromosomes in a human. For example, two sequenced DNA fragments from different individuals, AAGCCTA to AAGCTTA, contain a difference in a single nucleotide. In this case we say that there are two alleles. Almost all common SNPs have only two alleles. The genomic distribution of SNPs is not homogenous; SNPs usually occur in non-coding regions more frequently than in coding regions or, in general, where natural selection is acting and fixating the allele of the SNP that constitutes the most favorable genetic adaptation.[1] Other factors, like genetic recombination and mutation rate, can also determine SNP density.[2]
SNP density can be predicted by the presence of microsatellites: AT microsatellites in particular are potent predictors of SNP density, with long (AT)(n) repeat tracts tending to be found in regions of significantly reduced SNP density and low GC content.[3]
Within a population, SNPs can be assigned a minor allele frequency — the lowest allele frequency at a locus that is observed in a particular population. This is simply the lesser of the two allele frequencies for single-nucleotide polymorphisms. There are variations between human populations, so a SNP allele that...

Single nucleotide polymorphism SNP

published:04 Nov 2013

views:110255

For more information, log on to-
http://shomusbiology.weebly.com/
Download the study materials here-
http://shomusbiology.weebly.com/bio-materials.html
A single-nucleotide polymorphism (SNP, pronounced snip; plural snips) is a DNA sequence variation occurring when a single nucleotide — A, T, C or G — in the genome (or other shared sequence) differs between members of a biological species or paired chromosomes in a human. For example, two sequenced DNA fragments from different individuals, AAGCCTA to AAGCTTA, contain a difference in a single nucleotide. In this case we say that there are two alleles. Almost all common SNPs have only two alleles. The genomic distribution of SNPs is not homogenous; SNPs usually occur in non-coding regions more frequently than in coding regions or, in general, where natural selection is acting and fixating the allele of the SNP that constitutes the most favorable genetic adaptation.[1] Other factors, like genetic recombination and mutation rate, can also determine SNP density.[2]
SNP density can be predicted by the presence of microsatellites: AT microsatellites in particular are potent predictors of SNP density, with long (AT)(n) repeat tracts tending to be found in regions of significantly reduced SNP density and low GC content.[3]
Within a population, SNPs can be assigned a minor allele frequency — the lowest allele frequency at a locus that is observed in a particular population. This is simply the lesser of the two allele frequencies for single-nucleotide polymorphisms. There are variations between human populations, so a SNP allele that...

Scottish National Party walk out of Commons in protest

published:13 Jun 2018

Scottish National Party walk out of Commons in protest

Scottish National Party walk out of Commons in protest

published:13 Jun 2018

views:226957

The SNP have walked out of the House of Commons in protest at their leader in Westminster, Ian Blackford being ordered to leave Prime Minister’s Questions.
(Click to subscribe for more Channel 4 News videos.
https://www.youtube.com/channel4news?sub_confirmation=1)...

Scottish National Party walk out of Commons in protest

published:13 Jun 2018

views:226957

The SNP have walked out of the House of Commons in protest at their leader in Westminster, Ian Blackford being ordered to leave Prime Minister’s Questions.
(Click to subscribe for more Channel 4 News videos.
https://www.youtube.com/channel4news?sub_confirmation=1)...

A Tory walks into a Scottish National Party (SNP) bar - BBC Trending

published:06 Jun 2017

A Tory walks into a Scottish National Party (SNP) bar - BBC Trending

A Tory walks into a Scottish National Party (SNP) bar - BBC Trending

published:06 Jun 2017

views:9916

When a young Tory politician walks into a bar devoted to Scottish independence, two social media bubbles collide in real life.
Video journalist: Alex Dackevych
Reporter: Mike Wendling
SUBSCRIBE to BBC Trending: http://bit.ly/SubBBCTrending
Like what you see? Follow us here:
BBC Trending blog: http://www.bbc.com/trending
Twitter: http://www.twitter.com/bbctrending...

A Tory walks into a Scottish National Party (SNP) bar - BBC Trending

published:06 Jun 2017

views:9916

When a young Tory politician walks into a bar devoted to Scottish independence, two social media bubbles collide in real life.
Video journalist: Alex Dackevych
Reporter: Mike Wendling
SUBSCRIBE to BBC Trending: http://bit.ly/SubBBCTrending
Like what you see? Follow us here:
BBC Trending blog: http://www.bbc.com/trending
Twitter: http://www.twitter.com/bbctrending...

DIY TATTOO?? : How to give yourself a SnP Tattoo

published:08 Jun 2016

DIY TATTOO?? : How to give yourself a SnP Tattoo

DIY TATTOO?? : How to give yourself a SnP Tattoo

published:08 Jun 2016

views:297117

******* open me *******
if you\'re reading this, i set up a gofundme for my mom to have a surgery she really needs. she has health insurance, but she can\'t afford to take off of work to recover. here is the link, if you could share it, or if you have even just $5 to give, it would help so so much and i would be so appreciative.
https://www.gofundme.com/help-my-mom-have-knee-surgery
Disclaimer: instead of leaving a negative comment, try complimenting yourself so you feel better :P I like how it turned out, and that\'s all that matters. The key to stick n poke tattoos is to be patient and take your time. it will take a while but if you keep at it, it will look so much better than if you just quit after a couple passes. Stick n pokes aren\'t for everyone, but if you do decide to try it, please be safe in the materials that you use and your aftercare. Aftercare is the most important part of a tattoo, second to clean equipment and ink. My aftercare routine includes:
first 2-3 days : wash 2-3 times a day, letting it breathe, not wearing any tight clothing or covering it.
after it starts to scab : continue washing it daily, but after it dries, apply a thin layer of non scented lotion to the tattoo and around it to help with any dryness.
I also apply lotion if it feels dry at any time.
DO NOT PICK THE SCAB OR SCRATCH IT. it will be itchy and scabby and gross looking for a while when it starts to peel, but that\'s normal. give it time and be patient. ^_^
I\'m hoping to make more videos in the future, so please subscribe so you don\'t miss them ^.^ if you liked this video, pleas...

DIY TATTOO?? : How to give yourself a SnP Tattoo

published:08 Jun 2016

views:297117

******* open me *******
if you\'re reading this, i set up a gofundme for my mom to have a surgery she really needs. she has health insurance, but she can\'t afford to take off of work to recover. here is the link, if you could share it, or if you have even just $5 to give, it would help so so much and i would be so appreciative.
https://www.gofundme.com/help-my-mom-have-knee-surgery
Disclaimer: instead of leaving a negative comment, try complimenting yourself so you feel better :P I like how it turned out, and that\'s all that matters. The key to stick n poke tattoos is to be patient and take your time. it will take a while but if you keep at it, it will look so much better than if you just quit after a couple passes. Stick n pokes aren\'t for everyone, but if you do decide to try it, please be safe in the materials that you use and your aftercare. Aftercare is the most important part of a tattoo, second to clean equipment and ink. My aftercare routine includes:
first 2-3 days : wash 2-3 times a day, letting it breathe, not wearing any tight clothing or covering it.
after it starts to scab : continue washing it daily, but after it dries, apply a thin layer of non scented lotion to the tattoo and around it to help with any dryness.
I also apply lotion if it feels dry at any time.
DO NOT PICK THE SCAB OR SCRATCH IT. it will be itchy and scabby and gross looking for a while when it starts to peel, but that\'s normal. give it time and be patient. ^_^
I\'m hoping to make more videos in the future, so please subscribe so you don\'t miss them ^.^ if you liked this video, pleas...

The SNP have walked out of the House of Commons in protest at their leader in Westminster, Ian Blackford being ordered to leave Prime Minister’s Questions.
(Click to subscribe for more Channel 4 News videos.
https://www.youtube.com/channel4news?sub_confirmation=1)

When a young Tory politician walks into a bar devoted to Scottish independence, two social media bubbles collide in real life.
Video journalist: Alex Dackevych
Reporter: Mike Wendling
SUBSCRIBE to BBC Trending: http://bit.ly/SubBBCTrending
Like what you see? Follow us here:
BBC Trending blog: htt

******* open me *******
if you\'re reading this, i set up a gofundme for my mom to have a surgery she really needs. she has health insurance, but she can\'t afford to take off of work to recover. here is the link, if you could share it, or if you have even just $5 to give, it would help so so much an